?ol. XXXI 
No. 12 
( 
DECEMBER IS, 1925 
JOURNAL OF 
AGRICULTURAL 
RESEARCH 
CONTENTS 
Pag* 
Studies in Western Yellow Pine Nursery Practice - - - - - - 1101 
DONALD R. BREWSTER and J. A. LARSEN 
Yield Capacities of the Pure Yellow Pine Type on the East Slope of the Sierra 
Nevada Mountains in California - - - - - - - - - - 1121 
s. B. SHOW 
Preliminary Observations on an Insect of the Cotton Stainer Group New to the 
United States - - - - - - - - - - - 1137 
T. C. BARBER 
Nitrogen Metabolism in Etiolated Com Seedlings ------- 1149 
s. L. JODIDI 
Mineral Composition of Sunflowers Grown for Silage ------ 1165 
RAT E. NEIDIG and ROBERT S. SNYDER 
Influence of Field-Pea Rations on the Quality of Pork ------ 1173 
J. E. NORDBY and ROBERT S. SNYDER 
Germination of Frozen and Nonfrozen Wheat Harvested at Various Stages of 
Maturity - - - -- -- -- -- -- -- 1179 
W. O. WHITCOMB and PAUL FRANCIS SHARP 
The Influence of Nitrate Nitrogen upon the Protein Content and Yield of Wheat - 1189 
EDMUND BURKE 
PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE 
WITH THE COOPERATION OF THE ASSOCIATION 
OF LAND-GRANT COLLEGES 
WASHINGTON, D. C. 
GOVERNMENT PRINTING OFFICE 
1926 
